drm/radeon: atombios hw i2c fixes

These fixes make writes work properly.  Previously
only reads worked.  Note that this feature is off
by default.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-08-21 13:48:12 -04:00
commit d1e3b55648